Teflon Finishing Process

1. The principle of Teflon finishing process:
The Teflon-finished fabric can form a molecular barrier on the surface of fibers. After baking at a high temperature, a layer of film with a very small surface tension can be formed. Due to its low surface energy, the adhesion of water, oil, and dirt can be prevented. Permeation, water and oil dirt will be liquid beads on the surface of the fabric, it can be easily removed to form a better waterproof and oil-repellent effect. At the same time, the Teflon finishing agent is formed on the fiber surface due to the high-temperature baking during processing. The film can be firmly bonded to the fiber, and due to its oil and water repellent properties, water oil cannot decompose the polymer, so the Teflon finished fabric has good washfastness and dryclean fastness.
2, product process:
Stitching → Singeing → Retort → Oxygen Bleaching → Mercerizing → Stereotype → Dyeing → Washing → Teflon Finishing → Bake-out → Shrinkage-proof → Inspection
3 Notes:
3.1 The singeing process should pay attention to the hygiene of the machine table. In particular, the bristle roller must be kept clean. No yarn or other debris is required to ensure that the bristle roller can work properly. The distance from the crater to the fabric is adjusted to control the amount of oil and ensure the singeing. Effect, otherwise it will affect the finishing effect of Teflon.
3.2 When recoiling, it is necessary to ensure that the process is on the train and the flattening of the unit is enhanced. Flat flushing is used to ensure that the residual slurry on the fabric can be fully removed.
3.3 The mercerization process needs to pay attention to the effect of mercerization. When the amplitude is increased, it is required to fall without wrinkle, and the four bases and five suctions are used to fully remove alkali.
3.4 When dyeing, according to the characteristics of Teflon finishing, under the premise of ensuring the accurate color shade, add a soaping, on the one hand can fully wash the floating color, without residual lubricant, wetting agent, dyeing auxiliaries and residual Slurry, softener or other surfactants, on the other hand, can also ensure that the semi-finished product before Teflon finishing is clean and free of debris.
3.5 The Teflon finishing process firstly requires that the pH of the material to be finished after dyeing be neutral neutral acid, and the pH of the finishing working fluid should be 5-7. Secondly, the drum and the grime trough must be thoroughly cleaned and cannot be contaminated with any surfactant or silicon-containing softener. As long as microsilicone is contained, the oil-repellent and antifouling effect of the Teflon-finished fabric will be almost completely lost. Depending on the kind of softener used in the Teflon finishing of fabrics that have been soft-finished, this method is generally not feasible.
4 Conclusion:
4.1 The fabric of the normal production process can meet the requirements of the three-prevention finishing after finishing with Teflon. After the soft-treated fabric is finished with Teflon, it is slightly effective at the beginning, but after washing five times, its three defenses The effect will be lost.
4.2 Teflon-finished processing fabrics need to have more hygroscopicity, no alkali, no impurity, no residual wetting agent, dyeing aid, slurry residue, softener and other surfactants. During the Teflon finishing, the cleaning work of the chemical drum and the impregnation groove must be carefully done, and the specifications should be followed in accordance with the specifications provided by the supplier.
4.3 Teflon-finished fabrics, due to the lower surface energy of organofluorine, can protect users from splashes and infringements of water, oil, chemicals and dirt, are protective and can be used for high-quality women and Men's outerwear, sportswear, casual wear, protective workwear (such as oilfield clothing, military clothing), tents, travel articles, rain gear, and coatings.
Although Teflon finishing has a high production cost, functional fabric finishing has a good market prospect.
Xinxiang Yulong Textile Co., Ltd. specializes in producing all kinds of flame-retardant fabrics, flame-retardant fabrics, fluorescent fabrics, anti-arc fabrics, anti-static fabrics, anti-acid-alkali fabrics, oil-repellent waterproof fabrics, and other functional fabric manufacturers.

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